| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Photophysical Properties of Iridium(III) Complexes under Variation of Temperature: A Combined Experimental and Theoretical Study |
| 초록 |
The non-radiative decay of the high energy triplet state of a series of Ir(III)-complexes associated with the cleavage of one M–L bond was examined by integrating quantum chemical modeling methods and various experimental techniques. Ir(dfCF3)2(bor) showed emission lifetime of 4.36~4.77 μs, it is less dependent on temperature (20~70 oC). Otherwise Ir(dfCF3)2(acac) showed emission lifetime of 0.420~1.15 μs, which is more dependent on temperature. An analysis of the computational model and time-resolved luminescence experiments suggest that a combination of electronic effects and the bulkiness of the borate ancillary ligand protect the radiative excited state from non-radiative decay. Finally, Ir(dfCF3)2(bor) was tested as dopants in prototype phosphorescent organic light-emitting diode devices and found to show deep blue electroluminescence with high emission efficiency and color purity. |
| 저자 |
김종훈, 손미랑, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
Photophysical Properties; Iridium(III) Complexes; Variation of Temperature
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| E-Mail |
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